| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. J Curdo vs J D Thornton |
 | 1-0 | 17 | 1957 | corr | B52 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 2. D LeMoir vs J D Thornton |
| 1-0 | 39 | 1969 | BCF-ch U21 | C44 King's Pawn Game |
| 3. J Hardinge vs J D Thornton |
| 1-0 | 30 | 1978 | v Caerphilly | A01 Nimzovich-Larsen Attack |
| 4. J D Thornton vs Lobron |
| 0-1 | 48 | 1979 | European Team Championship qual-2 | B24 Sicilian, Closed |
| 5. A Zhigalko vs J D Thornton |
| 1-0 | 30 | 2005 | European Club Cup | C18 French, Winawer |
| 6. M Borriss vs J D Thornton |
| 1-0 | 32 | 2005 | European Club Cup | C19 French, Winawer, Advance |
| 7. J D Thornton vs J Cobb |
| 0-1 | 55 | 2005 | European Club Cup | C44 King's Pawn Game |
| 8. L Koerholz vs J D Thornton |
| 1-0 | 27 | 2005 | European Club Cup | D40 Queen's Gambit Declined, Semi-Tarrasch |
| 9. P Kuehn vs J D Thornton |
| 1-0 | 29 | 2007 | European Club Cup | A46 Queen's Pawn Game |
| 10. J D Thornton vs A Hammerstad |
| 0-1 | 32 | 2007 | European Club Cup | C10 French |
| 11. L Mueller vs J D Thornton |
| 1-0 | 40 | 2007 | European Club Cup | A67 Benoni, Taimanov Variation |
| 12. A Young vs J D Thornton |
| 1-0 | 32 | 2007 | European Club Cup | C10 French |
| 13. J D Thornton vs A Begaj |
| ½-½ | 34 | 2007 | European Club Cup | C14 French, Classical |
| 14. S Basha vs J D Thornton |
| ½-½ | 35 | 2007 | European Club Cup | D02 Queen's Pawn Game |
| 15. D Zagorskis vs J D Thornton |
| 1-0 | 35 | 2008 | European Club Cup | A60 Benoni Defense |
| 16. J D Thornton vs N Eliet |
| ½-½ | 70 | 2008 | European Club Cup | B18 Caro-Kann, Classical |
| 17. A Bennett vs J D Thornton |
| ½-½ | 41 | 2008 | European Club Cup | B33 Sicilian |
| 18. S Rouchouse vs J D Thornton |
| 1-0 | 36 | 2008 | European Club Cup | B25 Sicilian, Closed |
| 19. J D Thornton vs S Jessel |
| 0-1 | 29 | 2008 | European Club Cup | C05 French, Tarrasch |
| 20. J D Thornton vs J Carstensen |
| 0-1 | 27 | 2008 | European Club Cup | B90 Sicilian, Najdorf |
| 21. J McDonnell vs J D Thornton |
| ½-½ | 13 | 2008 | European Club Cup | C05 French, Tarrasch |
| 22. R Isserman vs J D Thornton |
| 1-0 | 46 | 2012 | European Senior Teams | A06 Reti Opening |
| 23. S Whatley vs J D Thornton |
| 0-1 | 25 | 2012 | Gibraltar Masters | A80 Dutch |
| 24. J D Thornton vs L Sanchez |
| 0-1 | 23 | 2012 | Gibraltar Masters | A10 English |
| 25. J Rapport vs J D Thornton |
| 1-0 | 60 | 2012 | Gibraltar Masters | D34 Queen's Gambit Declined, Tarrasch |
Kibitzing
